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. Author manuscript; available in PMC: 2008 Nov 10.
Published in final edited form as: J Chem Theory Comput. 2007;3(2):407–433. doi: 10.1021/ct600185a

Table 3.

Average unsigned electron affinity, ionization potential and heat of formation errors for HF, MP2, LSDA, and B3P86 methods.a,b

Electron Affinity
Method 3-21+G* 6-31+G* 6-31++G* aug-cc-
pVDZ
aug-cc-
pVTZ
HF 26.40 29.05 28.95 28.90 29.63
MP2 11.14 10.73 10.62 5.81 4.70
SVWN5 9.37 6.25 6.36 7.58 7.53
SPL 9.92 6.79 6.90 8.14 8.04
c-SVWN5 12.04 14.80 14.65 13.60 13.68
B3P86 16.78 13.02 13.08 13.99 13.53
Ionization Potential
Method 3-21G* 3-21+G* 6-31G* 6-31+G* 6-31++G* cc-pVDZ cc-pVTZ aug-cc-
pVDZ
aug-cc-
pVTZ
HF 26.53 23.00 25.70 24.74 24.76 26.33 25.74 25.19 25.40
MP2 15.59 9.77 10.45 10.42 5.84 11.44 9.78 6.74 5.53
SVWN5 10.74 10.29 7.57 8.52 8.48 7.68 8.33 8.59 8.75
SPL 10.50 10.37 7.49 8.62 8.57 7.46 8.42 8.70 8.83
c-SVWN5 24.93 17.31 22.57 19.08 19.05 23.37 19.85 19.06 18.69
B3P86 15.05 19.01 14.25 15.87 15.86 13.83 15.22 15.84 15.68
Heat of Formation
Method 3-21G* 3-21+G* 6-31G* 6-31+G* 6-31++G* cc-pVDZ cc-pVTZ aug-cc-
pVDZ
aug-cc-
pVTZ
HF 289.94 294.01 252.94 256.28 258.10 261.27 248.30 259.40 248.49
MP2 58.23 55.95 83.74 84.53 83.27 96.10
SVWN5 125.83 127.57 135.97 128.06 121.78 124.24 135.06 122.98 133.85
SPL 128.66 117.21 143.48 133.70 127.46 129.90 144.22 128.62 139.49
c-SVWN5 13.45 9.44 19.47 26.46 27.14 19.48 29.44 18.95 18.10
a

none values in kcal/mol.

b

B3P86 for EA and IP only.